php8 新特性 match

 https://www.php.net/manual/en/control-structures.match.php

      $shape = ['type' => 'circle', 'radius' => '10'];

      $res =  match ($shape) {
      ['type' => 'circle', 'radius' => 10] =>  'Circle with radius ' . $shape['radius'],
      ['type' => 'circle', 'radius' => '10'] =>  'Circle with radius10 ' . $shape['radius'],
      ['type' => 'circle', 'radius' => 12] =>  'Circle with radius ' . $shape['radius'],
    default =>  'Unknown shape',
};

dd($res); 

强类型匹配： 这里的10 是字符串 会匹配到第二个选项


左边可以有多个值，用,隔开 相当于 逻辑 or  
$result = match ($x) {
    // This match arm:
    $a, $b, $c => 5,
    // Is equivalent to these three match arms:
    $a => 5,
    $b => 5,
    $c => 5,
};


和switch 一样 支持 default 

$expressionResult = match ($condition) {
    1, 2 => foo(),
    3, 4 => bar(),
    default => baz(),
};

public static function getCount(){
    return 113;
}

//来源判断
public function checkoutFrom($str)
{

    $shape = 113;

    $res = match($shape){
    self::getCount() =>   self::getCount(),
     'demo' => ' 3.',
      default =>  'Unknown shape',
  };
  dd($res);
}

// 113 



比较 

    //来源判断
    public function checkoutFrom($str)
    {

        return  match ($str) {
        strpos($str, '[email protected]') !== false => 'digipart',
        strpos($str,'[email protected]') !== false => 'netcomponents',
        (strpos($str,'info') !== false && strpos($str,'hkinventory.com') !== false || strpos($str,'alert@hki') !== false) => 'hkinventory',
        strpos($str,'[email protected]') !== false => 'icsource',
        strpos($str,'[email protected]') !== false => 'octopart',
        strpos($str,'[email protected]') !== false => 'efind ',
        default => 'false',
        };


//        switch ($str) {
//            case strpos($str, '[email protected]') !== false:
//                return 'digipart';
//            case strpos($str,'[email protected]') !== false:
//                return 'netcomponents';
//            case (strpos($str,'info') !== false && strpos($str,'hkinventory.com') !== false || strpos($str,'alert@hki') !== false):
//                return 'hkinventory';
//            case strpos($str,'[email protected]') !== false:
//                return 'icsource';
//            case strpos($str,'[email protected]') !== false:
//                return 'octopart';
//            case strpos($str,'[email protected]') !== false:
//                return 'efind';
//            default:
//                return false;
//        }

        if(strpos($str, '[email protected]') !== false){
            return 'digipart';
        } else if(strpos($str,'[email protected]') !== false){
            return 'netcomponents';
        }else if(strpos($str,'info') !== false && strpos($str,'hkinventory.com') !== false  || strpos($str,'alert@hki') !== false){
            return 'hkinventory';
        }else if(strpos($str,'[email protected]') !== false){
            return 'icsource';
        }else if(strpos($str,'[email protected]') !== false){
            return 'octopart';
        }else if(strpos($str,'[email protected]') !== false){
            return 'efind';
        }
        return false;
    }